OpenSCAD beveling tube connection

This is a dirty hack to make beveling connections in OpenSCAD. I never see it was made before. So here it is. You can modify it for other objects that will work with HULL correctly. I wrote more fast but less smooth version without HULL. Did not upload yet.

Sorry did not fully realize what TAGs are needed for this thing.

Correction: I found similar things were did before with slightly different approach:
http://www.thingiverse.com/thing:135408
http://www.thingiverse.com/thing:137984